US1289921A - Fountain-pen. - Google Patents

Description

S. M. ROWE.

FOUNTAIN PEN.

APPLICATION FILED APR. 6. 1917.

Patented Dem, 31, 1918.

11v VEN TOR.

WITNESSES in I an PATNT to.

SIDNEY M. E0, OF CINCINNATI, OHIO, ASSIGNOR OF THBEE-TENTHS T LOUIS I SHAFEE, 0F CENCINNATI, OHIO.

roonrarri-rnrr.

Specification of letters katent.

Patented Dec. 31, rare.

Application filed April 8, 1917. Serial No. 160,819.

substituted with another filled one; second,

to provide a method by which the pen is supplied with writing fluid other than the usual method of filling the barrel of the pen by means of adropper or by the method used in self-filling pens wherein the reservoir is a collapsible rubber sack or tube.

I attain these objects by the mechanlsm illlpstrated in the accompanying drawing, in w ich-- I Figure 1 is a longitudinal section of the .entire pen.

Fig. 2, a plan view in detail of the exterior of the pen showing in dotted lines the.

interior screw joints and connections and the rubber or lead gasket;

Fig. 3, shows the reservoir and stopper for the same.

Fig. i is a lon 'tudinal section of an entire pen whose arrel and pen stockis fashioned out of one piece.

Similar numerals refer to similar parts throughout the several views.

The barrel 1 and the pen stock 2 secured to the barrel by means of threaded joints 3, constitute the frame work of the pen. Within the interior of the barrel and fitting the walls of the same smoothly throughout its length, is an ink tube or reservoir 4, which can be constructed of either glass or metal.

Between the pen stock 2 and the ink tube or reservoir 4, whose outer periphery fits closely the interior wall of the barrel 1, is a rubber or soft lead gasket 5;'the purpose of said gasket 5, being to secure a perfect joint between the pen stock andthe ink tube -or reservoir, to prevent leakage from the reservoir into the barrel; the said gasket havmg an orifice .6, through the center to allow the ink from the reservoir to flow into the duct 7, located in the pen. stock.

The upper end of the barrel is also threaded exteriorly to receive a cap 8, having the interior 9, thereof threaded in part. Within this cap is a rubber plug 10, permanently fixed therein for a purpose hereinafter explained.

The reservoir 4, in Fig. 3, it will be noticed has a stopper 11, for the month; this stopper or cork is removed from the mouth of the reservoir before inserting the reservoir into the barrel of the pen. The cap 8, first being unscrewed from the barrel 1, and then inserting the reservoir longitudinally into the interior of the barrel until the mouth of the reservoir comes into contact with the surface of the gasket 5; then by screwing the cap 8, onto the barrel 1, until the rubber plug 10, impinges itself upon the closed end 12, of the reservoir, the mouth of the reservoir is forced against and into the surface of the gasket thereby securing a joint that will not leak.

It is obvious that by removing the cap the reservoir can be withdrawn when empty, to be replaced by another filled reservoir.

In Fig. 4 l aimto show that the same principle, as shown in Fig. 1, can be applied to the type of pen wherein the pen-stock and the barrel are fashioned of one piece of material, although the type of fountain-pen having the removable pen-stock is preferred because it is much easier to remove or re place the gasket when worn.

I also show in the drawings a part of the closed end of the reservoir protruding from the barrel in order to afiord a grip to remove .the same.

ioned plug for abutting the closed end of the tain the tube firmly in place therein, and ink tube, a pen stock adapted to screw on the tight against leakage.

other end of the barrel, and a cushioned SIDNEY M. ROWE. abutment intermediate the stock and the Witnesses: 5 open end of the tube, whereby the two re- CLIFFORD L. Bonscn,

movable parts at the ends of the barrel re- WM. F. DRUHMAN.

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